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author | Florian Westphal <fw@strlen.de> | 2017-01-23 18:21:59 +0100 |
---|---|---|
committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2017-02-02 14:31:56 +0100 |
commit | a9e419dc7be6997409dca6d1b9daf3cc7046902f (patch) | |
tree | ff33b9a6415926bc627d1ad6e49eece8ef417b43 /net/netfilter/core.c | |
parent | 303223092081963513494b4377fa1ac9e362ed4b (diff) | |
download | op-kernel-dev-a9e419dc7be6997409dca6d1b9daf3cc7046902f.zip op-kernel-dev-a9e419dc7be6997409dca6d1b9daf3cc7046902f.tar.gz |
netfilter: merge ctinfo into nfct pointer storage area
After this change conntrack operations (lookup, creation, matching from
ruleset) only access one instead of two sk_buff cache lines.
This works for normal conntracks because those are allocated from a slab
that guarantees hw cacheline or 8byte alignment (whatever is larger)
so the 3 bits needed for ctinfo won't overlap with nf_conn addresses.
Template allocation now does manual address alignment (see previous change)
on arches that don't have sufficent kmalloc min alignment.
Some spots intentionally use skb->_nfct instead of skb_nfct() helpers,
this is to avoid undoing the skb_nfct() use when we remove untracked
conntrack object in the future.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/core.c')
-rw-r--r-- | net/netfilter/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netfilter/core.c b/net/netfilter/core.c index ce6adfa..a87a6f8 100644 --- a/net/netfilter/core.c +++ b/net/netfilter/core.c @@ -375,7 +375,7 @@ void nf_ct_attach(struct sk_buff *new, const struct sk_buff *skb) { void (*attach)(struct sk_buff *, const struct sk_buff *); - if (skb->nfct) { + if (skb->_nfct) { rcu_read_lock(); attach = rcu_dereference(ip_ct_attach); if (attach) |